Tetrafluoroethylene → Perfluoro-5-methyl2,3-dihydro-1,4-dioxin

HRID 1494497

反応式

HRID 1494497 の反応式
F[C:2]1([C:12]([F:15])([F:14])[F:13])[C:7](F)([F:8])[O:6]C(F)=C(F)[O:3]1.[F:16][C:17]([F:21])=[C:18]([F:20])[F:19]>FC(F)(C(F)(F)F)C(OOC(=O)C(F)(F)C(F)(F)F)=O.C(C(Cl)(F)F)(Cl)(Cl)F>[F:16][C:17]1([F:21])[C:18]([F:20])([F:19])[O:3][C:2]([C:12]([F:15])([F:14])[F:13])=[C:7]([F:8])[O:6]1

参加物

5

反応物 2

HCID 8301TetrafluoroethyleneHCID 14912597Perfluoro-2-methyl-2,3-dihydro-1,4-dioxin3 回

生成物 1

HCID 86744873Perfluoro-5-methyl2,3-dihydro-1,4-dioxin

試薬・触媒・溶媒 2

HCID 67743Bis(pentafluoropropionyl) peroxide触媒HCID 6428Cfc 113溶媒2 回

実験手順

A 240 mL s.s-lined tube was charged with 5.0 g (21 mmol) of monomer 14, 50 mL of CFCl2CF2Cl, 5 mL of cold 3% perfluoropropionyl peroxide catalyst in CFCl2CF2Cl, and 30 g (0.30 mol) of tetrafluoroethylene. The tube was agitated as the mixture warmed; at 20° C., a rapid exotherm carried to 55° C. while the pressure fell to 0 psig. The solid, white polymeric product was heated under vacuum to constant weight, 29.2 g. Analysis of the volatiles by GC indicated the presence of about 1.5 g (30%) of recovered monomer 14. For the polymer, DSC on reheat showed a broad mp, Tonset 271° C., Tpeak 297° C. TGA: 2% weight loss to 400° C., 3.5% weight loss to 440° C. Thus, copolymerization of 14 with TFE occurs readily to give very stable copolymer. A film pressed at 330° C. and 1800 psi for 2 min was clear and tough. ##STR36##

後処理

  1. temperaturewarmed
  2. customat 20° C.
  3. customcarried to 55° C. while the pressure
  4. temperatureThe solid, white polymeric product was heated under vacuum to constant weight, 29.2 g
  5. customa broad mp, Tonset 271° C., Tpeak 297° C
  6. customto 400° C.
  7. customto 440° C
  8. customto give very stable copolymer
  9. custompressed at 330° C.

出典と根拠

ORDレコード
ord-ba2666286a324f0aa34d5cb32ecb2b37
出典データセット
uspto-grants-1991_06
特許番号
US05026801

関連ノート

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